1. Research Center for Food Safety; School of Agricultural and Life Sciences; University of Tokyo; Bunkyo-ku Tokyo 113-8657
2. Laboratory of Biometabolic Chemistry; School of Health Sciences; Faculty of Medicine; University of the Ryukyus; 207 Uehara Nishihara Okinawa 903-0215
3. Laboratory for Behavioral Genetics; Brain Science Institute; RIKEN; Wako Saitama 351-0198 Japan